MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256216020d6b61e2045b8705a9b5baaab3ea1772de64f06014e7891bd7e45d99fb2
MD552fd9bbfdc930ae15e08876393634137
File Typerar
Size661.3 KB
First Seen2026-05-20
File NameSATIN_ALMA_SİPARİŞİ-SUMITOMO_RUBBER_AKO_LASTIK_SAN_ve_TIC_AS_docx.z.rar
TagsMassLogger, rar

Malware Family: MassLogger

MassLogger, email tabanlı keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: 216020d6b61e2045b8705a9b5baaab3ea1772de64f06014e7891bd7e45d99fb2
  • MD5: 52fd9bbfdc930ae15e08876393634137

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network immediately
  2. Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
  3. Move crypto wallets to a new address and abandon the old ones
  4. Start a full scan with up-to-date antivirus
  5. Clear saved browser passwords and enable 2FA
  6. Sign out of all sessions on every affected service

YARA Rule Hints

rule MassLogger_SHA256 {
    meta:
        description = "MassLogger sample: 216020d6b61e2045"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "216020d6b61e2045b8705a9b5baaab3ea1772de64f06014e7891bd7e45d99fb2"
}

MassLogger — Malware Profile

MassLogger credential stealer. PT2600000043.js Portekiz fatura lurü. CommonJS obfuscation. dispatch configuration data.

Malware Type
Infostealer
Programming Language
C#/.NET
C2 Protocol
SMTP/FTP
Target Systems
Windows

Capabilities & Behavior

Tarayıcı Kimlik Bilgileri
Çerez Hırsızlığı
Kripto Cüzdan Çalma
Sistem Bilgisi
Ekran Görüntüsü
FTP/SSH İstemci Şifreleri
E-posta İstemcisi Çalma
Veri Sızıntısı

IOC List (2 indicators)

IOC — MassLogger
# SHA256 216020d6b61e2045b8705a9b5baaab3ea1772de64f06014e7891bd7e45d99fb2 # MD5 52fd9bbfdc930ae15e08876393634137
TypeValueNote
sha256 216020d6b61e2045b8705a9b5baaab3ea1772de64f06014e7891bd7e45d99fb2 Sample:MassLogger
md5 52fd9bbfdc930ae15e08876393634137 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi